[Knockdown of long non-coding RNA actin filament-associated protein 1 antisense RNA1 (AFAP1-AS1) inhibits epithelial-mesenchymal transition, invasion and migration of TPC-1 papillary thyroid cancer cells].
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
; 37(1): 54-60, 2021 Jan.
Article
em Zh
| MEDLINE
| ID: mdl-33441229
ABSTRACT
Objective To detect the expression of long non-coding RNA (lncRNA) actin filament-related protein 1 antisense RNA1 (AFAP1-AS1) in papillary thyroid carcinoma tissue, and to investigate the effects of the knockdown of AFAP1-AS1 in TPC-1 papillary thyroid carcinoma cells on cell epithelial-mesenchymal transition (EMT) and related molecular mechanism in TPC-1 cells. Methods Real-time quantitative PCR was used to detect the expression of lncRNA AFAP1-AS1 in 60 cases of papillary thyroid carcinoma tissues. RNA interfering (RNAi) was used to knockdown AFAP1-AS1 in TPC-1 cells. TPC-1 cells were divided into AFAP1-AS1 knockdown (shAFAP1-AS1) group, negative control RNA (shNC) group and untransfected control group. The colony-formation assay, TranswellTM invasion and scratch healing assays were employed to detect the colony-forming ability, cell invasion ability and cell migration ability of TPC-1 cells, respectively. After knockdown of AFAP1-AS1, real-time quantitative PCR and Western blot analysis were used to detect the mRNA and protein levels of E-cadherin, vimentin, ß-catenin and snail2, respectively. Results Compared with the paracancerous tissue, the expression level of AFAP1-AS1 mRNA in the papillary thyroid carcinoma tissue significantly increased. Knockdown of AFAP1-AS1 significantly reduced the colony-forming ability, invasion and migration ability of TPC-1 cells. Compared with shNC group and control group, knockdown of AFAP1-AS1 significantly reduced the mRNA and protein expression of snail2, vimentin and ß-catenin. In contrast, the mRNA and protein expression of E-cadherin increased considerably. Conclusion The lncRNA AFAP1-AS1 is highly expressed in papillary thyroid carcinoma tissue. After knockdown of AFAP1-AS1 in TPC-1 cells, the colony-forming ability, invasion and migration ability of cancer cells are significantly down-regulated, which may be related to the inhibition of EMT.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Glândula Tireoide
/
RNA Longo não Codificante
Tipo de estudo:
Risk_factors_studies
Limite:
Humans
Idioma:
Zh
Revista:
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
Assunto da revista:
ALERGIA E IMUNOLOGIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China